混凝土本身的应力对水垢效应有影响

Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo Pub Date : 2019-01-01 DOI:10.26906/znp.2019.53.1894

A. Fenko, I. Yurko, A. Hasenko, O. Krupchenko, P. Yurko

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引用次数: 0

摘要

介绍了截面上自身应力不均匀分布对材料强度和尺度效应影响的实验方法和实验结果。分析了这种影响产生和分布的原因。基于脆性硬铝试样的试验结果，论证了混凝土在受压应力作用下，由于截面不均匀收缩而产生的影响尺度效应的必然性。解释了不同作者对混凝土受压时尺度效应的实验研究结果不同(有时相反)的可能原因。详细分析了试样尺寸和混凝土龄期不同，截面上自身应力分布不均匀对混凝土压缩过程中尺度效应的影响

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THE OWN STRESSES INFLUENCE ON SCALE EFFECT IN CONCRETE

The experimental technique and the experiment results on the influence of own stresses unevenly distributed over crosssection on materials strength and on scale effect are presented. The reasons for the occurrence and distribution of suchinfluence are analyzed. Based on the experiments results on fragile duralumin samples, the inevitability of influencing onscale effect in concrete during compression stresses, which are caused by unevenly shrinkage over cross section was proved.Possible reasons for the different (sometimes opposing) results of experimental studies of various authors on scale effect inconcrete in compression are explained. The influence of own stresses unevenly distributed over cross section on scale effectin concrete during compression, depending on samples size and concrete age, is analyzed in detail

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来源期刊

Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo

自引率

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审稿时长

24 weeks